Complexation state mancozeb top-jet-type drying method and device thereof

Abstract

The invention discloses a complexation type mancozeb top-jet-type drying method. In the invention, sizing agents after complex reaction enter from the top of a spray drying tower, and move downwards in a rotational flow mode in the spray drying tower; the drying temperature is 230 DEG C, the pressure of compressed air is from 0.4 MPa to 0.6 MPa, and the outlet temperature of the spray drying tower is less than or equal to 80 DEG C; and the angle of the materials coming out of an atomizer during atomization is from 50 degrees to 60 degrees. Atmosphere is communicated to an inlet of a heat interchanger, an outlet is connected with an inlet of the spray drying tower, an outlet of the spray drying tower is connected with an inlet of a cyclone separating device, and the airflow type atomizer is fixed at the top end of the drying tower by an atomizer fixing device, wherein the atomizer fixing device comprises a fixing rod, an axial fixing bolt, three radial fixing bolts, three sealing gland fixing bolts and a sealing gland. The axial fixing bolt is arranged at the end of the fixing rod, the three radial fixing bolts are uniformly distributed around the fixing rod and are perpendicular to the fixing rod, the three sealing gland fixing bolts are uniformly distributed at the circumference of the fixing rod and are 3 to 10 centimeters away from the axial direction of three radial fixing bolts.

Description

technical field [0001] The invention relates to a drying method and a device for an agricultural fungicide, in particular to a drying method and a device for a complex state mancozeb wettable powder. Background technique [0002] Complex mancozeb is a high-end product among mancozebs for agricultural use, and has better performance than ordinary mancozeb. The drug effect of its product is stable, long-lasting, and harmless, but after the complexation reaction, the slurry has a large water content and is difficult to dry. At present, manufacturers mainly use bottom spray air drying, such as figure 2 shown. The complexation reaction slurry enters from the bottom of the drying tower, atomizes at the bottom of the drying tower through the atomizer and exchanges heat and mass with the heated air, and the atomized material is overcome in the drying tower under the action of the induced draft fan. Gravity, flow upwards. After the materials are separated by cyclone and collected...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the existing technology such as material sticking to the wall, high temperature in the bag filter and intermittent discharge, the present invention provides a complexed mancozeb top-spray drying method and its device, which have the advantages of energy saving, material The advantages of non-stick wall and low temperature inside the bag filter

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